Vector-Valued Shepard Processes: Approximation with Summability

被引:2
|
作者
Duman, Oktay [1 ]
Vecchia, Biancamaria Della [2 ]
机构
[1] TOBB Econ & Technol Univ, Dept Math, TR-06560 Ankara, Turkiye
[2] Univ Roma Sapienza, Dipartimento Matemat, I-00185 Rome, Italy
关键词
approximation of vector-valued functions; Shepard operators; matrix summability methods; Cesaro method; CONVERGENCE; INTERPOLATION; OPERATORS; RATES;
D O I
10.3390/axioms12121124
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this work, vector-valued continuous functions are approximated uniformly on the unit hypercube by Shepard operators. If lambda denotes the usual parameter of the Shepard operators and m is the dimension of the hypercube, then our results show that it is possible to obtain a uniform approximation of a continuous vector-valued function by these operators when lambda >= m+1. By using three-dimensional parametric plots, we illustrate this uniform approximation for some vector-valued functions. Finally, the influence in approximation by regular summability processes is studied, and their motivation is shown.
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页数:16
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